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New Member

Third Party SIP with CUCM

Hi,

In CUCM 7.1.3 we registered the Nortel 1120 SIP Phone. Phone is registred & from there we able to calls the numbers internally with in the cluster.

If i dialed some external numbers i'm getting fast busy reorder tone.

In CUCM logs we are getting "SIP 503 Service unavailable & unable to find the device handler".

"unable to find the device handler "----- what is it mean exactly ? with 503 messages we understood that CUCm itself unable to process the request.

Thanks in advance

3 REPLIES
New Member

Re: Third Party SIP with CUCM

sh sip-ua status registar

you phone is present at this list?

There is my configuration - it's work ok (from internal and from external).

How protokol dialed from external? Sip or h.323?

Maybe you do this:

voice service voip
allow-connections h323 to sip
allow-connections sip to h323

My configuration:

ip cef
no ip dhcp use vrf connected
ip dhcp excluded-address 192.168.1.1 192.168.1.20
!
ip dhcp pool IpPhone
   network 192.168.1.0 255.255.255.0
   default-router 192.168.1.250
   option 150 ip 192.168.1.250
   option 66 ascii 192.168.1.250

ip multicast-routing
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
voice call send-alert
voice call disc-pi-off
voice rtp send-recv
!
voice service voip
address-hiding
allow-connections h323 to sip
allow-connections sip to h323
allow-connections sip to sip
no supplementary-service h450.2
no supplementary-service h450.3
supplementary-service h450.12
no supplementary-service sip moved-temporarily
no supplementary-service sip refer
redirect ip2ip
sip
  registrar server
!
voice class codec 1
codec preference 1 g711ulaw
codec preference 2 g711alaw
codec preference 3 g729r8
codec preference 4 g726r16
codec preference 5 g726r24
codec preference 6 g726r32
!
!

voice register global
mode cme
source-address 192.168.1.250 port 5060
max-dn 144

load 7906 SIP11.8-4-2S
authenticate register
timezone 32
time-format 24
date-format D/M/Y
hold-alert
dialplan-pattern 1 4.. extension-length 3
call-forward system redirecting-expanded
external-ring bellcore-dr3
tftp-path flash:
file text
create profile sync 0215281773239841
!
voice register dn  1
number 400
allow watch
pickup-call any-group
pickup-group 1
no-reg

!
voice register dn  2
number 401
allow watch
pickup-call any-group
pickup-group 1
no-reg
!
voice register dn  3
number 402
allow watch
pickup-call any-group
pickup-group 1
no-reg
!

voice register pool  1
id mac 000E.083A.2FA3
type 7906
number 1 dn 1
presence call-list
dtmf-relay rtp-nte sip-notify
voice-class codec 1
username 400 password 400
no vad
blf-speed-dial 1 400 label "400"
!
voice register pool  2
id mac 0019.306F.A30A
type 7906
number 1 dn 2
presence call-list
dtmf-relay rtp-nte sip-notify
voice-class codec 1
username 401 password 401
no vad
blf-speed-dial 1 401 label "401"
!
voice register pool  3
id mac 0014.0B0C.2A7E
number 1 dn 3
presence call-list
dtmf-relay rtp-nte sip-notify
voice-class codec 1
username 402 password 402
no vad
blf-speed-dial 1 402 label "402"

I hope, it's help

New Member

Re: Third Party SIP with CUCM

Hi,

I'm registring Nortel Phone with CUCM only. Moreover i can able to my local extensions. but some of the calls only i'm getting 503 message with unable to find device handler.

Thanks.

New Member

Third Party SIP with CUCM

It is peculiar, but I can only recieve calls via ekiga from cucm. for any originated call I am getting 503, with "unable to find device handler for the request received..."

Does anyone have any suggestion where to look?

thanks

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